English verb conjugation
MIGHT UNDERPERFORM

Regular verb: underperform - underperformed - underperformed

Affirmation

Simple form	V-ing form
I might underperform you might underperform he might underperform we might underperform you might underperform they might underperform	I might be underperforming you might be underperforming he might be underperforming we might be underperforming you might be underperforming they might be underperforming
Perfect	V-ing perfect
I might have underperformed you might have underperformed he might have underperformed we might have underperformed you might have underperformed they might have underperformed	I might have been underperforming you might have been underperforming he might have been underperforming we might have been underperforming you might have been underperforming they might have been underperforming

Negation

Simple form	V-ing form
I mightn't underperform you mightn't underperform he mightn't underperform we mightn't underperform you mightn't underperform they mightn't underperform	I mightn't be underperforming you mightn't be underperforming he mightn't be underperforming we mightn't be underperforming you mightn't be underperforming they mightn't be underperforming
Perfect	V-ing perfect
I mightn't have underperformed you mightn't have underperformed he mightn't have underperformed we mightn't have underperformed you mightn't have underperformed they mightn't have underperformed	I mightn't have been underperforming you mightn't have been underperforming he mightn't have been underperforming we mightn't have been underperforming you mightn't have been underperforming they mightn't have been underperforming

Interrogative form

Simple form	V-ing form
might I underperform? might you underperform? might he underperform? might we underperform? might you underperform? might they underperform?	might I be underperforming? might you be underperforming? might he be underperforming? might we be underperforming? might you be underperforming? might they be underperforming?
Perfect	V-ing perfect
might I have underperformed? might you have underperformed? might he have underperformed? might we have underperformed? might you have underperformed? might they have underperformed?	might I have been underperforming? might you have been underperforming? might he have been underperforming? might we have been underperforming? might you have been underperforming? might they have been underperforming?

Interro-negative form

Simple form	V-ing form
mightn't I underperform? mightn't you underperform? mightn't he underperform? mightn't we underperform? mightn't you underperform? mightn't they underperform?	mightn't I be underperforming? mightn't you be underperforming? mightn't he be underperforming? mightn't we be underperforming? mightn't you be underperforming? mightn't they be underperforming?
Perfect	V-ing perfect
mightn't I have underperformed? mightn't you have underperformed? mightn't he have underperformed? mightn't we have underperformed? mightn't you have underperformed? mightn't they have underperformed?	mightn't I have been underperforming? mightn't you have been underperforming? mightn't he have been underperforming? mightn't we have been underperforming? mightn't you have been underperforming? mightn't they have been underperforming?